Is marksmanship a sport?
The bullet does the killing. The bullet does the hitting.
You are only aiming and pulling the trigger with one finger.
And yes, somebody can be on the toilet and shoot at a target.
This is effective the same question too. It's a sport, but it's not athletics, by the definitions I provided. If you like other definitions you can get other results. It's a linguistic question.
It is similar to Plato asking soldiers to define "courage" or judges to define "justice" and then showing that they can't. It's true that they can't, at least not precisely. But it only shows a limitation of language. Chess as sport is just another example.
Or as Wittgenstein said "of what we cannot speak, it is better to be silent." Or something close to that--didn't look it up. Meaning, if you can't even agree on your terms, it's a waste of time. This whole discussion is basically a failure to agree on terms.
@QuarteredFOV
I give it to him. His most absurd example.
A race car driver sits in a chair. Sometimes he has to pee in his pants while doing something.
Is car racing a sport?
I give it to him, just the way he wanted.
But you ask the same question three times now. The answer is "it depends on what you mean by sport."
Or more precisely if you like: whether an element is in a set depends on the exact criteria for membership in the set.